tarynmanns11 tarynmanns11
  • 17-04-2021
  • Mathematics
contestada

Solve each system of equations by adding.

Solve each system of equations by adding class=

Respuesta :

ashwineedadool24
ashwineedadool24 ashwineedadool24
  • 17-04-2021

Answer:

3.  x+y = -1

    x-y = 7

(x+x+y-y) 2x=6

x=3

4. 2x+2y = -2

   3x-2y = 12

(2x+3x+2y-2y) 5x=-2+12

5x=10

x= 2

5. 6x+5y = 4

  -6x+7y = 20

(6x-6x+5y+7y)= 4+20

12y=24

y=2

Answer Link

Otras preguntas

Most of which northern state bordering the Great Lakes is shaped like a mitten
We're kamikazes an example of the Japanese national devotion?
The sample has a mass of 81 grams and a volume of 0.9 cubic centimeters. What is the density of the sample in grams per cubic centimeter?
how were the earliest english attempts at colonization similar and different from the jamestown effort?
2y=3x+11 give three ordered pairs
A store has apples on sale for $3.00 for 2 pounds. How many pounds of apples can you buy for $9?
wath is the fraction 4over10 plus 3over5
Five times ten over twelve
True or false, a treasury bill must be 13 weeks.
On what body of water is tokyo located